Fig. 1: General chiral insertions tactics for catalytic chiral allylic center preparations using 1,3-dienes.

a Boration by chiral L-M-Bpin. b Hydro-silylation, -thiolation, and -boration. c Hydro-vinylation by (BDPP)CoCl₂ (1,4-insertion, exocyclic). d This work: hydroalkenylation by [chiral NHC–Ni(allyl)]BAr^F.